Even numbers are integers that are exactly divisible by 2. They include numbers like 2, 6, 10, 20, 50. The document discusses even numbers in detail, covering their definition and properties of addition, subtraction, and multiplication. Some key properties are that adding or multiplying two even numbers results in an even number, while adding or multiplying two odd numbers results in an odd number. The document also provides examples to illustrate the properties and includes an activity asking questions about even numbers from 1 to 100.

1. EVEN NUMBERS
ALAN S. ABERILLA

2. EVEN NUMBERS are integers that are exactly
divisible by 2, whereas an odd number cannot
be exactly divided by 2. The examples of even
numbers are 2, 6, 10, 20, 50, etc. The concept
of even number has been covered in this lesson
in a detailed way. Along with the definition of
the even number, the other important concepts
like first 50 even numbers chart, even numbers
up to 100, properties of addition, division, and
subtraction are also covered along with solved
examples and practice questions.

3. PROPERTIES OF EVEN
NUMBERS
Property of Addition
 Adding even and odd (or vice-versa), the resulting number is
always odd.
Ex: 8 + 5 = 13,
5 + 18 = 23
 Adding even and even, the resulting number is always even.
Ex: 12+8 = 20
 Adding odd and odd, the resulting number is always even.
Ex: 13 + 9 = 22

4. Property of Subtraction
 Subtracting even from odd (or vice-versa), the resulting
number is always odd.
Ex: 7 – 4 = 3,
10 – 5 = 5
 Subtracting even from even, the resulting number is always
even.
Ex: 16 – 6 = 10
 Subtracting odd from odd, the resulting number is always
even.
Ex: 21 – 13 = 8

5. Property of Multiplication
 Multiplying even and even will always result in an even
number.
Ex: 6 × 4 = 24,
12 × 4 = 48
 Multiplying even and odd numbers will result in an even
number.
Ex: 4 × 5 = 20,
6 × 3 = 18
 Multiplying odd and odd numbers will always give an odd
number.
Ex: 3 × 5 = 15,
5 × 9 = 45

6. ACTIVITY 1:
Answer the following:
1. What are the even numbers from 1 to 100? (Make a table of 5
rows and
10 columns)
2. How to know if a number is even?
3. What is the first even number?
4. Why zero is an even number?
5. What is the smallest even number?
Use short bond paper (handwritten or computerized) – utilize the
folder of assignment 1